pmdomain: apple: Move Kconfig option to the pmdomain subsystem

The Kconfig option belongs closer to the corresponding implementation,
hence let's move it from the soc subsystem to the pmdomain subsystem.

Cc: Hector Martin <marcan@marcan.st>
Cc: Sven Peter <sven@svenpeter.dev>
Cc: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Cc: <asahi@lists.linux.dev>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Reviewed-by: Neal Gompa <neal@gompa.dev>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/pmdomain/Kconfig

@@ -3,5 +3,6 @@ menu "PM Domains"
 
 source "drivers/pmdomain/actions/Kconfig"
 source "drivers/pmdomain/amlogic/Kconfig"
+source "drivers/pmdomain/apple/Kconfig"
 
 endmenu

drivers/pmdomain/apple/Kconfig

@@ -0,0 +1,18 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+if ARCH_APPLE || COMPILE_TEST
+
+config APPLE_PMGR_PWRSTATE
+	bool "Apple SoC PMGR power state control"
+	depends on PM
+	select REGMAP
+	select MFD_SYSCON
+	select PM_GENERIC_DOMAINS
+	select RESET_CONTROLLER
+	default ARCH_APPLE
+	help
+	  The PMGR block in Apple SoCs provides high-level power state
+	  controls for SoC devices. This driver manages them through the
+	  generic power domain framework, and also provides reset support.
+
+endif

drivers/soc/apple/Kconfig

@@ -4,19 +4,6 @@ if ARCH_APPLE || COMPILE_TEST
 
 menu "Apple SoC drivers"
 
-config APPLE_PMGR_PWRSTATE
-	bool "Apple SoC PMGR power state control"
-	depends on PM
-	select REGMAP
-	select MFD_SYSCON
-	select PM_GENERIC_DOMAINS
-	select RESET_CONTROLLER
-	default ARCH_APPLE
-	help
-	  The PMGR block in Apple SoCs provides high-level power state
-	  controls for SoC devices. This driver manages them through the
-	  generic power domain framework, and also provides reset support.
-
 config APPLE_RTKIT
 	tristate "Apple RTKit co-processor IPC protocol"
 	depends on MAILBOX